#include "delay.h"
#include <REGX52.H>

unsigned char Nixie_Buf[9] = {0,10,10,10,10,10,10,10,10};
unsigned char num[] = {0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x6F,0x00,0x40};

/**
  * @brief  设置显示缓存区
  * @param  Location 要设置的位置，范围：1~8
  * @param  Number 要设置的数字，范围：段码表索引范围
  * @retval 无
  */
void Nixie_SetBuf(unsigned char Location,Number)
{
	Nixie_Buf[Location]=Number;
}

/**
  * @brief  数码管扫描显示
  * @param  Location 要显示的位置，范围：1~8
  * @param  Number 要显示的数字，范围：段码表索引范围
  * @retval 无
  */
void Nixie_Scan(unsigned char Location,Number)
{
	P0 = 0x00;//清零
	switch(Location)
	{
		case 8: P2_4 = 0;P2_3 = 0;P2_2 = 0;break;
		case 7: P2_4 = 0;P2_3 = 0;P2_2 = 1;break;
		case 6: P2_4 = 0;P2_3 = 1;P2_2 = 0;break;
		case 5: P2_4 = 0;P2_3 = 1;P2_2 = 1;break;
		case 4: P2_4 = 1;P2_3 = 0;P2_2 = 0;break;
		case 3: P2_4 = 1;P2_3 = 0;P2_2 = 1;break;
		case 2: P2_4 = 1;P2_3 = 1;P2_2 = 0;break;
		case 1: P2_4 = 1;P2_3 = 1;P2_2 = 1;break;

	}
	P0 = num[Number];
}

void Nixie_Loop()
{
	static unsigned char i=1;
	Nixie_Scan(i,Nixie_Buf[i]);//这是循环扫描，就是定时器2ms进来一次，然后显示一个数码管，然后i++到下一个，然后循环
	i++;
	if(i>=9)
	{
		i=1;
	}
}